Frequencies for first 10,000 rows of rx1v1c3 variable in nhamcsed2015 dataset :

   For RX1, |
 level 1 of |
MULTUM drug |
category #3 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,756       97.56       97.56
        040 |         22        0.22       97.78
        057 |        215        2.15       99.93
        097 |          3        0.03       99.96
        105 |          2        0.02       99.98
        113 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017